User interface for a shower control system



FIG. 1 is a front view of a user interface for a shower control system;

FIG. 2 is a front view perspective view thereof; and,

FIG. 3 is a side view thereof, the opposite side is a mirror image.

The broken line showing of the remainder of the user interface forms no part of the claimed design. The broken line showing of the text and graphic elements forms no part of the claimed design. 

CLAIM We claim the ornamental design for a user interface for a shower control system, as shown and described. 